Use New 7TV Cosmetics System (#4512)

* feat(seventv): use new cosmetics system

* chore: add changelog entry

* fix: old `clang-format`

* fix: small suggestions pt1

* refactor: add 7tv api wrapper

* fix: small clang-tidy things

* fix: remove unused constants

* fix: old clangtidy

* refactor: rename

* fix: increase interval to 60s

* fix: newline

* fix: Twitch

* docs: add comment

* fix: remove v2 badges endpoint

* fix: deadlock

This is actually really sad.

* fix: remove api entry

* fix: old clang-format

* Sort functions in SeventvBadges.hpp/cpp

* Remove unused vector include

* Add comments to SeventvBadges.hpp functions

* Rename `addBadge` to `registerBadge`

* fix: cleanup eventloop

* ci(test): add timeout

---------

Co-authored-by: Felanbird <41973452+Felanbird@users.noreply.github.com>
Co-authored-by: Rasmus Karlsson <rasmus.karlsson@pajlada.com>

src/widgets/settingspages/GeneralPage.cpp

@@ -560,6 +560,11 @@ void GeneralPage::initLayout(GeneralPageView &layout)
     layout.addCheckbox("Show 7TV channel emotes", s.enableSevenTVChannelEmotes);
     layout.addCheckbox("Enable 7TV live emote updates (requires restart)",
                        s.enableSevenTVEventAPI);
+    layout.addCheckbox("Send activity to 7TV", s.sendSevenTVActivity, false,
+                       "When enabled, Chatterino will signal an activity to "
+                       "7TV when you send a chat mesage. This is used for "
+                       "badges, paints, and personal emotes. When disabled, no "
+                       "activity is sent and others won't see your cosmetics.");
 
     layout.addTitle("Streamer Mode");
     layout.addDescription(